DPI-C issue

SystemVerilog
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1

Hello,

Is there anyone who can support in system Verilog DPI-C .??

Then i will post my issue here.

Regards,
Nidhi

2

In reply to nidhi0844:

It’s going to depend on the type of issue and how much “support” you really need. This is a volunteer discussion forum, not a customer support site.

3

in C -

int SnappyOperations(int sel,char (*Raw_Data)[3],int size)

then I want to Dpi this function in sv.

I have to make the wrapper of this function in c as using OpenArrayHandle , Then how Can i make this?

I want to pass the 4k data to this (Raw_Data)…

and size is 4096

4

In reply to nidhi0844:

I do not entirely understand how you meant to pass 4K of data as an array of 3 char strings, but think can import the following function

   import "DPI-C" context function void wrapper(int sel, byte data[3][], int size);

Then your C code would look like

void wrapper (int sel, const svOpenArrayHandle data, int size){
  char (*wrap_data)[3];
  wrap_data[0] = (char *)svGetArrElemPtr2(data,0,0);
  wrap_data[1] = (char *)svGetArrElemPtr2(data,1,0);
  wrap_data[2] = (char *)svGetArrElemPtr2(data,2,0);
  SnappyOperations(sel,wrap_data,size);
}

I am extremely rusty with multidimensional array pointers in C, but I hope this gives you an idea of where to start.